Recall that very satisfied customers give the XYZ-Box video game system a rating that is at least
Question:
a. Letting μ represent the mean composite satisfaction rating for the XYZ-Box. set up the null and alternative hypotheses needed if we wish to attempt to provide evidence supporting the claim that μ exceeds 42.
b. The mean and the standard deviation of the sample of n = 65 customer satisfaction ratings are = 42.95 and s = 2.6424. Use a critical value to test the hypotheses you set up in part (a) b) setting a equal to .01. Also, interpret the p-value of .0025 for the hypothesis test.
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Related Book For
Business Statistics In Practice
ISBN: 9780073401836
6th Edition
Authors: Bruce Bowerman, Richard O'Connell
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